Answer:
C. graphic organizer
Step-by-step explanation:
This can help you, first, to organise your ideas. The nodes from the graphic organiser will stand for your main concepts and you can place them in order of importance. Then, you will draw arrows from one node to the other to signal the logical connection between them. This graphic organiser can also help you revise your essay since the nodes will help you see if you have developed your ideas hierarchicaly. Besides, the arrows will help you revise the logical coherence of your essay.